Yuav ua li cas txhim kho lub neej kev pab cuam ntawm electroless npib tsib xee plating ntawm lub tshuab nqus tsev electroplating hluav taws xob cua sov raj?

Yuav ua li cas txhim kho lub neej kev pab cuam ntawm electroless npib tsib xee plating ntawm lub tshuab nqus tsev electroplating hluav taws xob cua sov raj?

Kev pabcuam lub neej ntawm electroless npib tsib xee plating feem ntau cuam tshuam nrog nws txoj haujlwm thiab kev saib xyuas. Kev ua haujlwm tsis tuaj yeem hloov pauv, tab sis kev saib xyuas yog khoom tsim. Yog tias peb tsis saib xyuas nws, nws lub neej yuav luv dua thiab luv dua, thiab txawm tias nws tawg, vim li cas nrhiav tsis pom. Ntawm qhov tsis sib xws, yog tias koj tuav cov electroless nickel plating Zoo, nws yuav ntxiv rau nws txoj sia.

Hais txog kev saib xyuas ntawm electroless npib tsib xee plating, qhov tseeb, peb tsis tas yuav siv lub zog ntau dhau, lossis koj yuav tsum siv sijhawm ntev npaum li cas, koj tsuas yog yuav tsum nkag siab txog nws cov kev paub txog kev tu thiab nqa nws kom zoo. Nyob rau lub sijhawm ntev, electroless nickel plating yuav zoo dua. Peb xav tau cov dej tsis muaj dej, tsis muaj dej tsis zoo, thiab kev txheeb xyuas cov khoom raug nyiag raws sijhawm. Ua li no, peb ntseeg tias yuav tsis muaj teeb meem ntau dhau nrog electroless nickel plating. Tom qab tag nrho, peb xav tau kev saib xyuas zoo.

Dab tsi yog lub luag haujlwm ntawm electroless nickel plating rau lub tshuab nqus tsev electroplating hluav taws xob cua sov hauv PCB tsim?

Electroless npib tsib xee plating yog ib txoj kev tau txais cov hlau alloys ntawm cov plated qhov chaw nrog catalytic nto los ntawm kev siv cov tshuaj tiv thaiv oxidation rov qab tsis muaj hluav taws xob. Nws yog ib tug tshiab technology tsim tsis ntev los no.

Electroless npib tsib xee plating yog hais txog ib txoj hauv kev tso ib txheej ntawm npib tsib xee rau saum npoo ntawm cov hlau los ntawm oxidation rov qab tsis muaj tam sim no sab nraud. Siv los txhim kho corrosion thiab abrasion kuj, ntxiv luster thiab kev zoo nkauj. Bright npib tsib xee plating haum rau me me tubular los yog irregularly zoo li tus yam tsis muaj ntxiv polishing.

Feem ntau, cov khoom yuav tsum tau muab tso rau hauv ib qho kev daws ntawm npib tsib xee sulfate, sodium dihydrogen hypophosphite, sodium acetate thiab boric acid, uas hloov nyob rau hauv ib tug tej yam acidity thiab kub, thiab cov nickel ions nyob rau hauv cov kev daws yog zoo los ntawm sodium dihydrogen hypophosphite. Nws yog tso rau ntawm qhov chaw ntawm lub workpiece rau atoms los ua ib tug ncauj lus kom ntxaws thiab ci npib tsib xee txheej. Cov khoom siv hlau tuaj yeem yog npib tsib xee plated ncaj qha. Tin, tooj liab thiab tooj liab alloy qhov chaw yuav tsum xub kov qhov chaw nrog aluminium ntawv - 3 feeb kom ceev electroless nickel plating.

Nickel yog ib qho kev rov qab muaj zog me ntsis.

Nickel yog insoluble nyob rau hauv dej, thiab tsim ib tug zoo oxide zaj duab xis rau saum npoo nyob rau hauv cov huab cua nyob rau hauv lub chav tsev kub, uas muaj peev xwm tiv thaiv lub nruam oxidation ntawm lub cev hlau.

Nws dissolves maj mam hauv dilute acid thiab tsis hnov ​​​​mob rau oxidant kev daws teeb meem nrog rau nitric acid.

Nickel yog etched qeeb heev los ntawm nickel hydrochloric acid, sulfuric acid, organic acid thiab alkaline kua. Nickel dissolves maj mam hauv dilute nitric acid. Fuming nitric acid tuaj yeem cuam tshuam qhov nto ntawm nickel thiab muaj corrosion kuj.

Yog li, electroless npib tsib xee plating siv npib tsib xee ua txheej, uas tuaj yeem txhim kho corrosion kuj ntawm PCB.

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